Orthotropic Plate Method
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Free Vibration Analysis of Reinforced Composite Functionally Graded Plates with Steady State Thermal Conditions
Abstract The present paper deals with free vibration of functionally graded fiber reinforced rectangular plates subjected to thermal loads. The rectangular plates are assumed orthotropic. The continuous grading fiber reinforced plates have a smooth variation in matrix volume fraction in the thickness direction. Two different types of volume fraction profiles
Lat. Am. j. solids struct.. Publicado em: 2017-06
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2. Assessment of Homotopy Perturbation Method for Study the Forced Nonlinear Vibration of Orthotropic Circular Plate on Elastic Foundation
Abstract In this paper the nonlinear forced vibration of an orthotropic circular plate resting on Winkler, Pasternak and nonlinear Winkler foundation is investigated. Plates with edges elastically restrained against rotation and inplane displacement are analyzed and the Von-Karman geometric nonlinear equations are employed. In this study it is assumed that t
Lat. Am. j. solids struct.. Publicado em: 2016-02
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3. The Effect of Material Property on the Critical Velocity of Randomly Excited Nonlinear Axially Travelling Functionally Graded Plates
Abstract In this paper, the critical axial speeds of three types of sigmoid, power law and exponential law functionally graded plates for both isotropic and orthotropic cases are obtained via a completely analytic method. The plates are subjected to lateral white noise excitation and show evidence of large deformations. Due to randomness, the conventional de
Lat. Am. j. solids struct.. Publicado em: 2016-01
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4. Mechanical properties of nanocomposite laminated structure and its sensibility to modal analysis procedure
In this work, tensile and shear modulus, as well as Poisson's ratio of a woven orthotropic nanocomposite plate were determined from vibration data. Plates used in the experiment were 16 layers S2-glass/epoxy composite manufactured by vacuum assisted wet layup. The nanocomposite plate was obtained by adding 0%, 1%, 2%, 5% and 10% nanoclays in weight to the ep
Lat. Am. j. solids struct.. Publicado em: 2014-03
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5. A study on the nonlinear stability of orthotropic single-layered graphene sheet based on nonlocal elasticity theory
Recently, graphene sheets have shown significant potential for environmental engineering applications such as wastewater treatment. In the present work, the posbuckling response of orthotropic single-layered graphene sheet (SLGS) is investigated in a closed-form analytical manner using the nonlocal theory of Eringen. Two opposite edges of the plate are subje
Lat. Am. j. solids struct.. Publicado em: 2014
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6. Implementação de um algoritmo numérico para solução da equação de Christoffel generalizada em acustoelasticidade. / Implementation of a numerical algorithm for solution of the generalized Chistoffel equation in acoustoelasticity.
Extensive studies carried out in the last decades on the propagation of ultrasonic waves in solids led to the development of nondestructive techniques for the assessment of the safety and integrity of industrial structures and components. The interest in the application of ultrasound techniques for stress measurement for example comes from the measurable cha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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7. Identificação das matrizes de rigidez elastica em placas finas de materiais compositos / Identification of the elastic stiffness matrixes on thin plates of composite materials
In this work is presented a study on the elastic characterization of composite materials, and it is divided in two parts. In the first part is proposed the application of regressive discrete Fourier series (RDFS) to smooth mode shapes used as input data in a direct and no-iteractive identification method of the bending elastic stiffness constants already ava
Publicado em: 2009
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8. Contribuição ao estudo de painéis reforçados: comparação entre o método da chapa ortotrópica e o método dos elementos finitos. / Contribution to the study of reinforced panels: comparison between orthotropic plate method and the finite element method.
Métodos convencionais, tais como o método da chapa ortotrópica, têm sido aplicados por muitos anos no estudo de painéis reforçados pela sua simplicidade e facilidade de aplicação na determinação de tensões agentes nas fases iniciais da espiral projeto. Não estão disponíveis na literatura, porém, análises comparativas do método da chapa ortot
Publicado em: 2008
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9. ELEMENTOS FINITOS ENRIQUECIDOS PARA FLAMBAGEM E VIBRAÇÃO DE PLACAS / ENRICHED FINITE ELEMENTS FOR BUCKLING AND VIBRATION OF SHELLS
The focus of the present work is to developand evaluate enriched elements used to obtain critical loads, frequencies of vibration and respective modes for two-dimensional structural components (rectangular plates in bending under inplane compressive loading). The Rayleigh-Ritz approximation method has been employed, directed to the use of conventional finite
Publicado em: 2007
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10. Analysis of static and dynamic problems in anisotropic plate bending using boundary element methods / Analise de problemas estaticos e dinamicos em placas anisotropicas utilizando o metodo dos elementos de contorno
Here, static and dynamic analysis of a number of anisotropic problems using the boundary element method are presented. The formulation used is developed fram the elastostatic fundamental solutions and the domain integraIs due to inertial terms are transformed into boundary integraIs by using the dual recipracity method. Application is made to the calculation
Publicado em: 2005
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11. Orthotropic stress-laminated truss plate for timber bridges construction / Tabuleiro ortótropo treliçado protendido transversalmente para aplicação em pontes de madeira
This work aim to the theoretical and experimental study of the behaviour of orthotropic stress-laminated truss plate for timber bridges construction. To this purpose the material properties, structural elements, conections and prestress level were analysed. Two numeric models were used in order to avaliate the plate elastic properties, based on the finite el
Publicado em: 2003